Tricycle



Nov. 8, 1927.

F. DI MARZO TRIGYC-LE Filed. ALLE. 14, 1926 Patented Nov. 8, 1927.

I.SATES ENTIO-FFlCE.)

FRANCIS DI MARZO, O]? TUFO, ITALY, ASSIGI\TOR T0 MADDALENA GANNACO, OF LAWRENCE, NEW YORK.

TRICYCLE.

Application filed August 14, 1926. Serial No. 129,133.

For a detailed description of the present form of my nvention, reference may be had to the following specification and to the aocornpanying drawings forming a pari; thereof, wherein Fig. 1 is a pian view with the seat removed;

Fig. 2 is a side elevation;

Fig. 3 shows the details of the cranks.

My invention relates to a novel mode of operating such a vehicle by the jo1nt efleot of the operators weight apphe d alternately to the pedals and the seat. VVh1le th e m vention is herein illustrated as embod1ed In a tricycle, it may also be embodied in a b1* o de.

In the drawings A s the vehicle frame which is forked, as usual, for the front steering Wheel and also forked at the real towards the rear axle bearings, whfle the seat-post is also forked to rece1ve the orank axle and the larger sprocket wheel.

The seat-rod B passes loosely through the sleeve C, which forms the unbranched portion of the seat-post, and is jointed to the outer end of pitman-rod D Which acts on the main crank E (Fig. 3),

The two parts of the crank-shaft are jonrnailed in the lower ends of the respect1ve branches of the forked seatpost and are provided respectively with the outside cranks G and H. TW-o pedal-levers M and J are connected with the respective cranl zs G and H by the links I and K. The sa1d pedai-levers are supported at their rear ends from the respective branohes of the rear frame-fori: by the links J end M By the means thus far described the main crani:- shaft is operated, on the one band, by the weight of the rider exerted through seatrod B, pitman D and crank E, and, on the other band, by theweight of the rider, when standing on the pedals, exerted through pedal-levers J end M, links I and K and oranks H and G. Thus by alternately sitting on the seat and standing on the pedals the rider rotates the main orank-shaft and the rotation of the shaft is transmitted in the usual way to the rear axle of the vehicle by sprooket-wheel F and a sprooket-chain.

A seoond seat P is mounted rigidly on the frame over the center of the rear axle, and a second rider on this seat can assist in the propnlsion by standing periodically on the pedal-lever O, which is supported from the front post of the frame by a link 0 and is also connected by link N with the wrst-pin of the aforesaid crank E. Thus the weight of the first rider, acting on orank E by seatpost B and ptman D, is supplemented by the weight of the second rider standing 011 pedaldever O.

By means of my device the operation of the vehicle is no longer a sidewise transfer of the pushing impulse from one foot to the other, but is a fore-and-aft transfer from a.- push with both feet simultan-eously on the pedals in front to a push on the seat behind as the rider subsequently seats himself and then lifts his feet as the pedals rise. The second rider makes similar movements but does not exert a Propelling impulse as he sits down on the seat.

What I claim as new and desre to secure by Letters Patent is:

1. A bodily-propelled vehicle provided With a vertcally movable seat-rod having a crank-and-pitman eonnection to a crank shaf't of the vehic1e and also provided with a pedal-lever having a link-andcrank connection to the same crank shaft.

2. A bodily-propelled vehicle havng pedal levers extending both forwardly end rear- Wardly from the seat-rod, a rear-seat adjacent to the rearwardly extending pedal and a crank shaft operated by both levers conjointly. v

3. A bodily propelled vehicle provided with a seat post, a vertcally movable seat rod guided by said seat post, crank mechanism for propelling the vehicle, and epitman rod connecting said seat post with said crank mechanism. v

4. A bodily propelled vehicle provided with a vertically movable seat rod, a crank shaft having two parts each provided W ith oppositely extended orank arms, a ptman rod connecting the seat rod with the crank arme Which extend in one and the sanie di rection, a movably mounted pedal, end links connecting the pedal with the other cank arms.

5. A bodly propelled vehcle provided with a vertcally movable seat rod, a crank.

5 shaft for propelling sad vehicle, saicl crank shaft hav1ng crank arms, one of said crank arms beng connected to said seat rod, and a FRANCIS DI MARZO. 

